Hair Dyeing Composition

Patent No. EP3283050 (titled "Hair Dyeing Composition") was filed by KAO Germany on Apr 14, 2016. The application was issued on Aug 21, 2019.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
LORAL	May 19, 2020	LOREAL
L'OREAL	May 19, 2020	LOREAL

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

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Oct 8, 2025
(Electronic) Receipt
Oct 8, 2025
French translation of claims
Oct 8, 2025
German translation of the claims
Oct 8, 2025
Letter accompanying subsequently filed items
Sep 16, 2025
Communication of bibliographic data
Sep 16, 2025
Communication to opponent concerning maintenance
Sep 16, 2025
Communication with request to file translations
Sep 10, 2025
Maintenance of the patent with the documents specified in the final decision
Jun 10, 2025
Brief communication - Opposition proceedings
Jun 10, 2025
Brief communication - Opposition proceedings
Jun 10, 2025
Decision of the Opposition Division and instruction
Jun 10, 2025
Druckexemplar in opposition procedure
Jun 10, 2025
Grounds for the decision (Annex) - opposition
Jun 10, 2025
Interlocutory decision in opposition proceedings
Jun 10, 2025
Interlocutory decision in opposition proceedings
Jun 10, 2025
Means of redress
Jan 17, 2025
Annex to the communication - opposition
Jan 17, 2025
Brief communication - Opposition proceedings
Jan 17, 2025
Brief communication - Opposition proceedings
Jan 17, 2025
Communication inviting the parties to file observations
Jan 17, 2025
Communication inviting the parties to file observations
Nov 27, 2024
Notification of termination of representative's authorisation
Nov 25, 2024
Communication confirming withdrawal from representation
Nov 18, 2024
Submission concerning change of applicant's representative
Oct 31, 2024
Brief communication - Opposition proceedings
Oct 30, 2024
(Electronic) Receipt
Oct 30, 2024
Amended description with annotations
Oct 30, 2024
Description
Oct 30, 2024
Letter accompanying subsequently filed items
Oct 30, 2024
Reply to an examination report in opposition proceedings
Sep 27, 2024
Annex to the communication - opposition
Sep 27, 2024
Brief communication - Opposition proceedings
Sep 27, 2024
Brief communication - Opposition proceedings
Sep 27, 2024
Communication inviting the parties to file observations
Sep 27, 2024
Communication inviting the parties to file observations
Aug 23, 2024
Decision of the Board of Appeal
Aug 23, 2024
F3032 Notification(s) of the decision
Aug 23, 2024
F3032 Notification(s) of the decision
Aug 1, 2024
F3013 Oral Proceedings: Forwarding minutes
Aug 1, 2024
F3013 Oral Proceedings: Forwarding minutes
Aug 1, 2024
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
May 22, 2024
F3345 Forwarding of submissions to parties
May 16, 2024
(Electronic) Receipt
May 16, 2024
Letter accompanying subsequently filed items
May 16, 2024
Letter dealing with oral proceedings during the appeal procedure
Jan 10, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 10, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 2, 2024
F3345 Forwarding of submissions to parties
Jan 2, 2024
Oral proceedings: change of venue
Jan 2, 2024
Oral proceedings: change of venue
Dec 20, 2023
(Electronic) Receipt
Dec 20, 2023
Letter accompanying subsequently filed items
Dec 20, 2023
Letter dealing with oral proceedings during the appeal procedure
Nov 29, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 29, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 24, 2023
F3345 Forwarding of submissions to parties
Nov 23, 2023
(Electronic) Receipt
Nov 23, 2023
Letter accompanying subsequently filed items
Nov 23, 2023
Letter dealing with oral proceedings during the appeal procedure
Nov 9, 2023
F3011.1 Oral Proceedings: summons
Nov 9, 2023
F3011.1 Oral Proceedings: summons
Nov 6, 2023
F3010 Oral proceedings: order for summons
Jul 24, 2023
Composition of the board (T)
Mar 6, 2023
Letter accompanying subsequently filed items
Mar 6, 2023
Request for a change of address - opponent
Aug 3, 2022
F3345 Forwarding of submissions to parties
Jul 29, 2022
(Electronic) Receipt
Jul 29, 2022
Letter accompanying subsequently filed items
Jul 29, 2022
Reply to appeal
Mar 25, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 20, 2022
(Electronic) Receipt
Mar 20, 2022
Amended claims with annotations
Mar 20, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 20, 2022
Claims
Mar 20, 2022
Letter accompanying subsequently filed items
Mar 20, 2022
Statement of grounds of appeal
Jan 19, 2022
F3204 Communication of the file number to the parties
Jan 19, 2022
F3204 Communication of the file number to the parties
Jan 10, 2022
(Electronic) Receipt
Jan 10, 2022
Letter accompanying subsequently filed items
Jan 10, 2022
Notice of appeal
Nov 17, 2021
Advice of delivery
Nov 16, 2021
Advice of delivery
Nov 16, 2021
Advice of delivery
Nov 11, 2021
Annex to the communication - opposition
Nov 11, 2021
Decision of the Opposition Division and instruction
Nov 11, 2021
Decision revoking the European patent
Nov 11, 2021
Decision revoking the European patent
Nov 11, 2021
Grounds for the decision (Annex) - opposition
Nov 11, 2021
Means of redress
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 11, 2021
Provision of a copy of the minutes - opposition procedure
Nov 11, 2021
Provision of a copy of the minutes - opposition procedure
Nov 11, 2021
Transmittal of decision / summons - opposition
Nov 11, 2021
Transmittal of decision / summons - opposition
Oct 28, 2021
Information about the result of oral proceedings
Sep 3, 2021
Brief communication - Opposition proceedings
Sep 3, 2021
Brief communication - Opposition proceedings
Aug 27, 2021
(Electronic) Receipt
Aug 27, 2021
(Electronic) Receipt
Aug 27, 2021
Auxiliary request during Opposition procedure - 01
Aug 27, 2021
Auxiliary request during Opposition procedure - 02
Aug 27, 2021
Auxiliary request during Opposition procedure - 03
Aug 27, 2021
Auxiliary request during Opposition procedure - 04
Aug 27, 2021
Auxiliary request during Opposition procedure - 05
Aug 27, 2021
Letter accompanying subsequently filed items
Aug 27, 2021
Letter accompanying subsequently filed items
Aug 27, 2021
Main request during Opposition procedure
Aug 27, 2021
Request for interpreters during oral proceedings
Aug 27, 2021
Written submission in preparation to/during oral proceedings
Jul 9, 2021
Notification concerning the date of oral proceedings
Jul 9, 2021
Notification concerning the date of oral proceedings
Jan 28, 2021
Advice of delivery
Jan 26, 2021
Advice of delivery
Jan 21, 2021
Annex to the communication - opposition
Jan 21, 2021
Information concerning oral proceedings
Jan 21, 2021
Summons to attend oral proceedings
Jan 21, 2021
Summons to attend oral proceedings
Jan 21, 2021
Transmittal of decision / summons - opposition
Jan 21, 2021
Transmittal of decision / summons - opposition
Oct 29, 2020
Brief communication - Opposition proceedings
Oct 26, 2020
(Electronic) Receipt
Oct 26, 2020
Letter accompanying subsequently filed items
Oct 26, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jun 17, 2020
Communication of a notice of opposition and request to file observations
Jun 17, 2020
Notice of further oppositions to opponent(s)
May 28, 2020
Communication of a notice of opposition - first information to patent proprietor
May 25, 2020
Consolidated list of cited opposition documents
May 19, 2020
(Electronic) Receipt
May 19, 2020
Citation in opposition procedure - 001
May 19, 2020
Citation in opposition procedure - 002
May 19, 2020
Citation in opposition procedure - 003
May 19, 2020
Citation in opposition procedure - 004
May 19, 2020
Citation in opposition procedure - 005
May 19, 2020
Citation in opposition procedure - 006
May 19, 2020
International publication (Pamphlet)
May 19, 2020
Letter concerning fees and payments
May 19, 2020
Notice of opposition
May 19, 2020
Notice of opposition
Sep 2, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 25, 2019
Decision to grant a European patent
Jun 4, 2019
Notice drawing attention to the payment of the renewal fee and additional fee
Apr 15, 2019
(Electronic) Receipt
Apr 15, 2019
Filing of the translations of the claims
Apr 15, 2019
French translation of claims
Apr 15, 2019
German translation of the claims
Jan 25, 2019
Annex to the communication about intention to grant a European patent
Jan 25, 2019
Bibliographic data of the European patent application
Jan 25, 2019
Communication about intention to grant a European patent
Jan 25, 2019
Intention to grant (signatures)
Jan 25, 2019
Text intended for grant (clean copy)
Jan 25, 2019
Text intended for grant (version for approval)
Jan 11, 2019
Examination started
Jun 14, 2018
Amended claims filed after receipt of (European) search report
Jun 14, 2018
Amended claims with annotations
Jun 14, 2018
Amendments received before examination
Jun 11, 2018
Amended claims filed after receipt of (European) search report
Jun 11, 2018
Amended claims with annotations
Jun 11, 2018
Amendments received before examination
Jan 24, 2018
Notification on forthcoming publication of bibliographic data
Dec 1, 2017
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 29, 2017
Communication to designated inventor
Nov 29, 2017
Communication to designated inventor
Nov 29, 2017
Communication to designated inventor
Nov 24, 2017
Priority search results copy provided by EPO
Oct 30, 2017
Copy of the international preliminary report on patentability
Oct 19, 2017
(Electronic) Receipt
Oct 19, 2017
Request for entry into the European phase
Aug 25, 2017
Information on entry into European phase
Nov 8, 2016
Priority document (electronically transmitted)
Oct 20, 2016
Copy of the international search report
Oct 20, 2016
Published international application - A1
May 19, 2016
ISR: cited documents
May 18, 2016
Written opinion of the ISA, boxes No. I to VIII
May 18, 2016
Written opinion of the ISA, cover sheet
May 18, 2016
Written opinion of the ISA, supplemental box
Apr 29, 2016
Notification of receipt of Search copy
Apr 21, 2016
Notification of the international application number and of the international filing date
Apr 18, 2016
Request form for international application (copy for ISA/EP)
Apr 14, 2016
(Electronic) Receipt
Apr 14, 2016
Abstract
Apr 14, 2016
Claims
Apr 14, 2016
Description
Apr 14, 2016
Document concerning fees and payments
Apr 14, 2016
Electronic request for grant of an International application
Apr 14, 2016
Priority document (RO-procedure)

EP3283050

KAO GERMANY

Application Number: EP16716222A
Filing Date: Apr 14, 2016
Status: Granted And Under Opposition; Jul 19, 2019
Publication Date: Aug 21, 2019
External Links: Slate, Register , Google Patents

IP Verse

Hair Dyeing Composition

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3283050